2,5-Dihydrothiophene 1,1-dioxide

U.S. production volumes are classified as confidential business information.

Molecular structure of 77-79-2
US ProductionCBI
Import Value$6.4B
Top SourceSingapore 36%

The EPA did not publish how much of this chemical companies made or imported, or marked that amount confidential. Without that volume, ACID cannot calculate import dependency.

Where It Comes From

Customs basis: HS 293499 · basket

These shares come from HS customs code 293499, which covers 57 chemicals in total. They estimate the bucket's origin mix, not this chemical specifically.

Source Countries
SG 36%SingaporeIE 23%IrelandCN 11%ChinaCH 6%SwitzerlandIN 5%India
EPA-registered manufacturers (1)
Chevron Phillips Chemical

Why It Matters

Sectors
Energy
Downstream UsesNo data available
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 1 sector as 1 functional role.

  • Lubricants and lubricant additives in Petroleum Lubricating Oil and Grease Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.05/gA2B Chem LLC
CountryUnited States
Pack$1256.00 / 25 kg
Purity95%
Vendors20 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

19 more vendors
VendorCountry$/gPackPurity
AA BLOCKSUnited States$0.0525 kg98%
AK Scientific SpecializedUnited States$0.10500 g95%
AK Scientific, Inc.United States$0.13500 g98%
Sigma-Aldrich (Rush Stock)Germany$0.18500 g98%
Sigma-AldrichGermany$0.18500 g98%
Aaron Chemicals LLCHong Kong$0.19500 g98%
Angene ChemicalChina Hong Kong$0.21500 g98%
Combi-Blocks, Inc.United States$0.30500 g98%
Fluorochem UKUnited Kingdom$0.9725 g99%
AstaTech (2 weeks)United States$1.5625 g95%
Angene International LimitedUnited States$2.4025 g98%
InterbioscreenHong Kong$24.0010 g95%
TargetMol ChemicalsChina United States$26.002 g
Otava, Ltd.Ukraine$2280.0050 mg95%
Otava, Ltd. (2 weeks)Ukraine$2724.0050 mg95%
Princeton BioMolecular Research (SC)United States$2900.00100 mg90%
Vitas M Chemical LimitedHong Kong$3170.00100 mg90%
AngeneChina Hong Kong$4266.6730 mg98%
AsinexNetherlands$6461.40100 mg90%

Chemical Identity

CAS77-79-2
PubChem CID6498
DTXSIDDTXSID6021294
FormulaC4H6O2S
Mol. Weight118.16 g/mol
SMILESC1C=CCS1(=O)=O

Data Sources

DTXSID60212942026-04-06

https://doi.org/10.23645/epacomptox.5588566

Archive: data/sources/comptox/dsstox_identifiers.csv

64982026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/6498/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/6498.json

77-79-22026-04-24

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr.csv

CAS 77-79-22026-04-25

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr_industrial.csv